T-Mobile's Q2 2026 Earnings: First Test of Capital Markets Day Guidance

T-Mobile reports Q2 2026 results on July 23 at 7:30 AM ET. The print is the first check against 2026 postpaid net account addition guidance set at February's Capital Markets Day. Postpaid accounts carry recurring monthly billing — a core growth metric. Any mid-year revision to that guidance would signal management's updated read on the back half of 2026.